Categories in Pages

I have 2 categories in my blog.
1/ Photos
2/ Videos
My problem is i added a third called Miscellance for just writing within my pages, it wont allow me to categorize within my pages, i have noticed it is set as default which is photos, which looks silly if it is just writing on that page and no photos are there. I can categorize within my posts. I would really like this to work.
PLEASE HELP….

Wrong thinking. You do NOT keep posts in Pages. You keep them as a separate category.
Make all your “notes” in the Miscell category as posts.
The use a plugin to exclude that category from the main/home page. They will be visible only by clicling on the category name/link.